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29 September 2026 It's Lightroom update time again. There are some minor features, as well as bug fixes, new cameras and lenses.
See What’s New in Lightroom Classic 15.6, Mobile & Desktop (September 2026)?
Reducing LR "preview data" bloat on my HD
- Thread starter maiaibing
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I don't think you can delete them (easily that is, they are read only) and LR will recreated them if you do delete them. They should only get scanned once and again if accessed. They will only be accessed if needed. You can exclude the *Previews.lrdata from the virus scan if thhis is a bottleneck.
You can reduce the size and quality of the previews and minimize the retention period of the 1:1 previews to keep this storage as small as possible
You can reduce the size and quality of the previews and minimize the retention period of the 1:1 previews to keep this storage as small as possible
Mark Sirota
Senior Member
I agree with Cletus -- eliminate the Previews database from your virus scanning and search index.
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